I have a Magellan roadmate 700 (with the 760 firmware update) it's nice, does a great job navigating, turn by turn, corrections etc. But like someone said map updates are expensive (I think $90 for this latest one) and my single biggest complaint, they have POI's yes. But not the important ones. My theory on GPS (maybe i'm the only one who uses a GPS for this...) is that a GPS is there for when your in an unfamiliar area and need to get around. Ok, say your on the road in the unfamiliar area and OH NO, you need to see a hospital, clinic, whatever. Your not going with a magellan gps. No sir, Very few hospitals programmed into the GPS. I think the nearest to me now (Vegas mind you) is listed as over 300 miles away.
This would not be such a big complaint, but on a whim I went and looked at Garmin, TomTom, a few other non magellan brands. Almost everyone of them (Garmin and TomTom for sure) had hospitals, they even had clinics, dentists, vets, any kind of medical related clinic/building.
That long ass rant aside, I've not had a single problem with magellan other than the hospital issue. I used it in Europe (had to pay another 100 or so bucks for the Europe map) and it performed flawlessly. Here in Vegas it's lost a little bit of faith (as it doesn't have some areas), but new roads are built in this city every second of every day it seems....so I don't blame the company for that.
All that rambling said, I will most likely buy a Garmin next, the units i've seen seem to be smaller and overall I hear almost all good about Garmin whereas the Magellan not as much.